Rockwell Automation 1746-NO8V SLC 500 8-Point Analog Output Module - Manual (Page 7)

SLC 500 8-Point Analog Output Module 7
Publication 1746-IN026A-EN-P - July 2003
•
With the jumper in the 1-2 shorted position, the module draws all of its
power from the backplane of the SLC system.
•
With the jumper in the 2-3 shorted position, the module draws its 24V dc
power from the external power supply; however, the module still draws its
5V dc power from the backplane.
Important Notes about Using an External 24V dc Power Supply
ATTENTION
!
Before setting the jumper, all system power must be turned
off. This includes the chassis power as well as any external
24V dc power supply.
IMPORTANT
If the module is configured to use an external 24V dc power
supply, the supply must be turned on for the module to
operate. If the external 24V dc power supply is turned off, the
module’s outputs will be turned off, and the module’s
processor will be reset until power is restored.
The module’s LEDs will flash the 24V Power Fail blink code.
See the troubleshooting section of the SLC 500 8-Point Analog
Output Modules User Manual, publication 1746-UM026 for
more information.
IMPORTANT
Do not use the 24V dc user power terminal on the chassis
power supply to power the analog output module.
RACK
1 2 3
EXT RACK
1 2 3
EXT
Module draws power
from SLC backplane
(factory setting) Module draws 24V dc
power from external supply